PSYB64H3 Chapter Notes - Chapter 14: Ventromedial Prefrontal Cortex, Facial Nerve, Cerebral Cortex
Document Summary
Emotion: a combination of physical sensations and the conscious experience of a feeling. Physical sensations: rapid heartbeat which are usually unconscious. Conscious sensation: subjective experience, such as feeling scared. Valence: a positive (attractive) or negative (aversive) reaction to an object or event. Darwin studied facial expressions of humans and other primates and concluded that emotional expression must have evolved. Nonverbal communication: facial expression and body language; provide an important source of social information. People pay more attention to our face, in particular to the eyes. Human infants prefer gazing at faces rather than at any other types of visual stimuli. Two cranial nerves control movement of the human face: facial nerve (cranial nerve vii) and the trigeminal nerve (cranial nerve v) Facial nerves controls the superficial muscles attached to the skin, which are primarily responsible for facial expressions. Trigeminal nerve controls the deeper facial muscles attached to bones of the head responsible for chewing food and speaking.
